Solve for y:
2x + 3y > 6
-2x
3y > 6 - 2x
/3
y > 2 -2/3x
Change > to =:
y=2-2/3x
Graph It
Choose a point on the Plane:
EX(0,0)
Change = back to >
y>2-2/3x
Replace y and x with the point coordinates you chose
0>2-2/3(0)
If its true shade that side of the graph
2007-02-23 15:59:21
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answer #1
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answered by nano 1
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First, solve for y:
2 x + 3y > 6
3y > -2x + 6 subtract 2x from both sides
y > (-2/3)x + 2 divide both sides by 3
Now graph the dotted line represented by this inequality. On a piece of graph paper, draw the x and y axes. Put a dot at (0,2) which is the y-intersect, and from this dot go down 2 units and to the right 3 units, and make another dot. Draw a dotted line through these two points. Shade above and to the right of this line. The shaded area represents the solutions to this inequality.
2007-02-23 22:28:22
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answer #2
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answered by Marcella S 5
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solve for y
2x + 3y > 6
3y> 6-2x
y > 2-x
2. just graph that like y=2-x
3. test a number either to the left or right of the line ... usually the point (0,0) works best, unless its on the line...
so: substitute (0,0)
0 > 2-0
0 > 2
since 0 is not greater than 2, shade in the opposite side of the graph...
just for future reference.. if this particular equation came out correct.. uhm if 0 WAS greater than 2.. everything to that side of the line would be shaded in...
4. last thing!
when graphign inequalities... if its a "greater-than" or "less-than" graph.. the line will be dotted
if its a "greater-than or equal to" or "less-than or equal to" then the line is solid...
i hope this helps!
2007-02-23 22:30:22
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answer #3
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answered by Sum Girl 4
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get y by itself:
2x+3y>6
-2x -2x
_________
3y>-2x+6
/3 /3
_______
y>(-2/3)x+2
your y-intercept is 2. go up 2 on the y-axis (vertical axis) and plot a point at (0,2)
your slope is -2/3. from (0,2) go down 2 right 3 to (3,0), and plot it. now go down another 2 and right 3 to (6,-2) and plot it. Connect these three points with a dashed line since it is greater than not greater than or equal to. once you have a dashed line, you need to shade in everything below the line.
2007-02-23 22:28:11
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answer #4
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answered by Drake 1
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2x+3y>6
-2x
{3y>6-(2x)}/3
y>2-(2/3x) put this into a graphing calc.
or pay closer attention in class
2007-02-23 22:25:08
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answer #5
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answered by Anonymous
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this is not an answer...but people from 8th grade to parents of 9th graders have been stumped on simple things such as the y= mx+b formula...
2007-02-23 22:35:44
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answer #6
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answered by Alex H 2
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